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Cheap flights from District of Columbia to Ko Samui from $606

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from District of Columbia to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:59 pm - 7:40 pmDCA  Washington, D.C. Reagan-National-USM Ko Samui
43h 41m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
11:55 am - 9:03 pmUSM  Ko Samui-DCA Washington, D.C. Reagan-National
44h 08m2 stops Hong Kong Intl Los Angeles
$1,213Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
7:13 pm - 7:40 pmIAD  Washington, D.C. Dulles Intl-USM Ko Samui
37h 27m2 stops Dallas/Fort Worth Hong Kong Intl
Multiple Airlines Logo
11:55 am - 5:32 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
28h 37m2 stops Hong Kong Intl Los Angeles
$1,218Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Etihad Airways Logo
3:10 pm - 3:25 pmIAD  Washington, D.C. Dulles Intl-USM Ko Samui
37h 15m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
9:10 pm - 9:05 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
47h 55m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$1,221Etihad Airways
Thu, Oct 15 - Mon, Nov 23
Multiple Airlines Logo
8:05 pm - 9:20 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
25h 15m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
3:50 pm - 8:30 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
28h 40m2 stops Phuket City Doha Hamad Intl
$1,235Multiple Airlines
Thu, Feb 18 - Thu, Feb 25
EVA Air Logo
1:15 am - 1:45 pmIAD  Washington, D.C. Dulles Intl-USM Ko Samui
25h 30m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
8:35 pm - 10:00 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
36h 25m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,305EVA Air
Fri, Oct 16 - Sun, Oct 18
Qatar Airways Logo
11:05 am - 10:30 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
36h 25m2 stops Doha Hamad Intl Phuket City
Qatar Airways Logo
3:05 pm - 4:55 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
36h 50m2 stops Phuket City Doha Hamad Intl
$1,347Qatar Airways
Thu, Oct 22 - Mon, Oct 26
Etihad Airways Logo
3:10 pm - 8:15 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
30h 05m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
1:25 pm - 10:05 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
31h 40m2 stops Singapore Changi Abu Dhabi Zayed Intl
$1,403Etihad Airways
Thu, Oct 22 - Mon, Oct 26
EVA Air Logo
11:55 pm - 9:20 pmIAD  Washington, D.C. Dulles Intl-USM Ko Samui
33h 25m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
9:10 pm - 8:55 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
35h 45m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,590EVA Air
Sat, Dec 12 - Thu, Dec 24
Multiple Airlines Logo
11:05 am - 8:35 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
34h 30m3 stops Doha Hamad Intl Kuala Lumpur Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
3:35 pm - 3:55 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
36h 20m3 stops Bangkok Suvarnabhumi Kuala Lumpur Intl Doha Hamad Intl
$2,113Multiple Airlines
Thu, Oct 15 - Mon, Nov 23
Multiple Airlines Logo
9:00 pm - 4:50 pmIAD  Washington, D.C. Dulles Intl-USM Ko Samui
32h 50m3 stops Doha Hamad Intl Kuala Lumpur Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
3:50 pm - 4:55 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
36h 05m3 stops Bangkok Suvarnabhumi Kuala Lumpur Intl Doha Hamad Intl
$2,113Multiple Airlines
Sun, Oct 18 - Sat, Oct 24

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EVA Air flights from District of Columbia to Ko Samui

Our best EVA Air deals on District of Columbia to Ko Samui flight tickets
EVA Air
Oct 16
IAD1:15 amWashington, D.C. Dulles Intl
25h 30m
2 stops
USM1:45 pmKo Samui
Oct 18
USM8:35 pmKo Samui
36h 25m
2 stops
IAD10:00 pmWashington, D.C. Dulles Intl
$1,305
EVA Air
Dec 12
IAD11:55 pmWashington, D.C. Dulles Intl
33h 25m
2 stops
USM9:20 pmKo Samui
Dec 24
USM9:10 pmKo Samui
35h 45m
2 stops
IAD8:55 pmWashington, D.C. Dulles Intl
$1,590

Qatar Airways flights from District of Columbia to Ko Samui

Our best Qatar Airways deals on District of Columbia to Ko Samui flight tickets
Qatar Airways
Oct 22
IAD11:05 amWashington, D.C. Dulles Intl
36h 25m
2 stops
USM10:30 amKo Samui
Oct 26
USM3:05 pmKo Samui
36h 50m
2 stops
IAD4:55 pmWashington, D.C. Dulles Intl
$1,347
Qatar Airways
Sep 14
IAD9:00 pmWashington, D.C. Dulles Intl
34h 00m
2 stops
USM6:00 pmKo Samui
Sep 17
USM5:25 pmKo Samui
33h 15m
2 stops
IAD3:40 pmWashington, D.C. Dulles Intl
$1,582
Qatar Airways
Dec 25
IAD10:50 amWashington, D.C. Dulles Intl
33h 20m
2 stops
USM8:10 amKo Samui
Jan 3
USM6:30 pmKo Samui
33h 25m
2 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$2,264

momondo Fare Finder

 
Use the filters below to find and compare flights from District of Columbia to Ko Samui that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ko Samui

DCA Washington, D.C. Reagan-National - USM Ko Samui

DCAUSM

Washington, D.C. Reagan-National

Sun 10/18

12:59 pm-7:40 pm

2 stops43h 41m

Ko Samui

Sat 10/24

11:55 am-9:03 pm

2 stops44h 08m

$1,213

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Sun 10/18

7:13 pm-7:40 pm

2 stops37h 27m

Ko Samui

Sat 10/24

11:55 am-5:32 am

2 stops28h 37m

$1,218

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 10/15

3:10 pm-3:25 pm

2 stops37h 15m

Ko Samui

Mon 11/23

9:10 pm-9:05 am

2 stops47h 55m

$1,221
Quickest round-trip

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 2/18

8:05 pm-9:20 am

2 stops25h 15m

Ko Samui

Thu 2/25

3:50 pm-8:30 am

2 stops28h 40m

$1,235

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Fri 10/16

1:15 am-1:45 pm

2 stops25h 30m

Ko Samui

Sun 10/18

8:35 pm-10:00 pm

2 stops36h 25m

$1,305

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 10/22

11:05 am-10:30 am

2 stops36h 25m

Ko Samui

Mon 10/26

3:05 pm-4:55 pm

2 stops36h 50m

$1,347

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 10/22

3:10 pm-8:15 am

2 stops30h 05m

Ko Samui

Mon 10/26

1:25 pm-10:05 am

2 stops31h 40m

$1,403

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Sat 12/12

11:55 pm-9:20 pm

2 stops33h 25m

Ko Samui

Thu 12/24

9:10 pm-8:55 pm

2 stops35h 45m

$1,590

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 10/15

11:05 am-8:35 am

3 stops34h 30m

Ko Samui

Mon 11/23

3:35 pm-3:55 pm

3 stops36h 20m

$2,113

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Sun 10/18

9:00 pm-4:50 pm

3 stops32h 50m

Ko Samui

Sat 10/24

3:50 pm-4:55 pm

3 stops36h 05m

$2,113

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Ko Samui from

How to get the cheapest flight ticket from District of Columbia to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from District of Columbia to Ko Samui?

Etihad Airways is the most popular carrier operating from District of Columbia to Ko Samui

Cheap District of Columbia to Ko Samui flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Ko Samui

Best Price Found

$606

Fastest flight time

26h 45m

Direct flights

None
The best one-way flight to Ko Samui from District of Columbia in the past 72 hours is $606. The best round-trip flight deal from District of Columbia to Ko Samui found on momondo in the last 72 hours is $1,213.
The fastest flight from District of Columbia to Ko Samui takes 26h 45m
There are no direct flights from District of Columbia to Ko Samui. There are no popular flight routes from District of Columbia to Ko Samui.
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Frequently asked questions about flying from District of Columbia to Ko Samui

  • When did momondo last update prices for flights from District of Columbia to Ko Samui Airport?

    Prices for flights from District of Columbia to Ko Samui Airport refresh daily.

  • How old do you have to be to fly from District of Columbia to Ko Samui Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan
Khanom

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Ko Samui?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Ko Samui. momondo saves you time and could save you money on your trip.

Can I find flights from District of Columbia to Ko Samui with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ko Samui from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to Ko Samui?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from District of Columbia.

I’m not ready to book a flight from District of Columbia to Ko Samui right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of District of Columbia to Ko Samui flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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